(57) In various embodiments of the invention, inductive coupling can be to a secondary
coil rather than a primary coil in order to optimize the topology of the NMR probe.
In addition, by coupling to a secondary coil using a detection coil located below
the lower insulator the RF homogeneity and signal to noise can be improved together
with the NMR probe topology. By effecting inductive coupling to an inductor in a multiple
resonance circuit, rather than to the sample inductor parameters associated with the
NMR, probe construction can be arranged to increase RF homogeneity and signal to noise,
while reducing space utilization constraints. In various embodiments of the invention,
the primary mode in a secondary coil can be split into two modes with a resonator
with inductive coupling to the secondary coil.
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